CN104169764A - Simplex connectors for multicore optical fiber cables - Google Patents

Simplex connectors for multicore optical fiber cables Download PDF

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Publication number
CN104169764A
CN104169764A CN201180013858.6A CN201180013858A CN104169764A CN 104169764 A CN104169764 A CN 104169764A CN 201180013858 A CN201180013858 A CN 201180013858A CN 104169764 A CN104169764 A CN 104169764A
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CN
China
Prior art keywords
connector
fiber
tubes assembly
core
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201180013858.6A
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Chinese (zh)
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CN104169764B (en
Inventor
K·B·布拉德利
G·A·桑德尔斯
W·C·怀特
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OFS Fitel LLC
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OFS Fitel LLC
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Application filed by OFS Fitel LLC filed Critical OFS Fitel LLC
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3834—Means for centering or aligning the light guide within the ferrule
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02042—Multicore optical fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/245—Removing protective coverings of light guides before coupling
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3834—Means for centering or aligning the light guide within the ferrule
    • G02B6/3843—Means for centering or aligning the light guide within the ferrule with auxiliary facilities for movably aligning or adjusting the fibre within its ferrule, e.g. measuring position or eccentricity
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
    • G02B6/3861—Adhesive bonding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3863—Details of mounting fibres in ferrules; Assembly methods; Manufacture fabricated by using polishing techniques
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3869—Mounting ferrules to connector body, i.e. plugs
    • G02B6/3871—Ferrule rotatable with respect to plug body, e.g. for setting rotational position ; Fixation of ferrules after rotation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3851—Ferrules having keying or coding means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • G02B6/3893—Push-pull type, e.g. snap-in, push-on
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4403—Optical cables with ribbon structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

An optical fiber cable connector includes a ferrule subassembly, wherein a ferrule is mounted into a receptacle including a barrel section having a flange at its base. The ferrule subassembly is loaded into an enclosure having a plug housing at its lead end. The plug housing provides a connection between an endface of a multicore fiber mounted into the ferrule and a corresponding surface in a mating socket. A collar is rotatably mounted onto the barrel section such that it butts up against the flange. The barrel section fits within the collar and the collar fits within the plug housing. The ferrule, receptacle, barrel section, mounted multicore fiber, enclosure, and plug housing have a common longitudinal axis. The ferrule, receptacle, barrel section and mounted multicore fiber are thus continuously rotatable with respect to the enclosure and plug housing, thereby enabling rotational precise alignment of the multicore fiber within the enclosure.

Description

Single work connector for multi-core fiber cable
The cross reference of related application
The application requires the U.S. Provisional Patent Application No.61/314 submitting on March 16th, 2010,165 right of priority, and this patented claim is all by the application's assignee, and is all incorporated into by reference this.
Technical field
The present invention relates in general to fiberoptic field, relates in particular to improved single work connector for multi-core fiber cable.
Background technology
For the growing demand of the high density for supercomputer and data-center applications, high-speed parallel optics data link, the passive optical devices that makes people be conducive to cost-effective effective deployment to being designed for has produced very high interest.At the multi-channel parallel link for supercomputer and data center, can utilize the thousands of optical link to 10Gb/s operation with 1Gb/s.
In traditional configuration, the parallel optical link of one dimension typically utilizes 1 * 12 multi-mode linear optical fiber array, and every optical fiber is as independent passage.In this arrangement, typically in band, become the optical fiber of 250 μ m spacing to terminate in the many ferrules of moulding such as MT sleeve pipe.MT stops optical fiber then for being connected forming between hyperchannel VSCEL and PiN photodetector array.For the more difficult application of assembling, the unjacketed optical fiber that adds that is typically band configuration ends in MT sleeve pipe, then MT sleeve pipe is put into MT-RJ, MPO, MTP tMor in MPX connector shell, to generate firm patchcord.
MT sleeve pipe can utilize with sizes and different hole number, to meet connector and the signal path application of wide region.For example, mini MT2 and mini MT4 are for MT-RJ patchcord.MT4, MT8 and MT12 are for MPO and the MPX patchcord of one-dimensional array.
For higher density, manufacturer terminates in optical fiber in MT16, MT24, MT48, MT60 or the MT72 sleeve pipe of 2D array.Yet, utilize the high density configuration of standard single-core fiber assembling to be proved to be to produce and expensive, because need to very accurately control glossing to guarantee coplane degree (especially in 72 optical fiber modification) realizing physical contact between all optical fiber when two connectors couplings.And the MT sleeve pipe of moulding is produced very expensive.The product percent of pass of the MT sleeve pipe of 2D array causes obviously higher cost, because the improper sleeve pipe that just causes in the position in a hole is discarded.For example, if 72 ferrules have a hole not meet status requirement, even if there is so the hole of 71 correct location, sleeve pipe also will abandon.
In addition, stacking optical fiber band is produced the required fiber ribbon connector of 2D configuration and is caused larger and heavy expensive packaging part.And the flexibility of fiber ribbon connector affects adversely.
Summary of the invention
One aspect of the present invention provides fiber optic cable connectors.In set of tubes assembly, sleeve pipe is arranged in container, and this container is included in the cylindrical segment that base portion has flange.Set of tubes assembly is arranged in encapsulation piece, and this encapsulation piece has plug body at its leading end place.The end face that plug body is configured to the multi-core fiber in being arranged on sleeve pipe provides and is connected with having between the optical transmission apparatus of coupling socket.Alternatively, multi-core fiber can be via being connected to another multi-core fiber by breakout box, and connector is arranged in the opposite ends of breakout box.Ring is rotatably installed in the cylindrical segment of set of tubes assembly, makes it against flange.Ring has around the opening of cylindrical segment assembling and is assembled to the neighboring in the reception cavity in plug body.Multi-core fiber, encapsulation piece and the plug body of sleeve pipe, container, container cylindrical segment, installation have public longitudinal axis.Therefore, the multi-core fiber of sleeve pipe, container, container cylindrical segment and installation can be with respect to encapsulation piece and plug body continuous rotation, thereby can make multi-core fiber rotary alignment accurately in encapsulation piece.
Other side of the present invention is intended to such connector, and wherein set of tubes assembly is loaded in rotatable framework, and its flange extended element and stretcher are for controlling the rotary alignment of multi-core fiber in encapsulation piece.
Accompanying drawing explanation
Figure 1A and 1B show respectively sectional view and the isometric chart of exemplary 7 core multi-core fiber (MCF) designs of describing in the common pending application application having in present assignee.
Fig. 2 A shows the tomography refractive index profile at 7 core MCF shown in Figure 1A and 1B.
Fig. 2 B shows the image of the VCSEL array of hexagonal arrangement, and this VCSEL array can be used in outside six cores of the MCF shown in Figure 1A and 1B and joins.
Fig. 2 C shows the image of transmitter sub-component, comprises the VCSEL array of four Fig. 2 B shown types side by side.
Fig. 3 shows according to the exploded view of (BTW) LC connector after the wall of prior art.
Fig. 4 shows according to the exploded view of the jumper connection LC connector of prior art.
Fig. 5 shows the stereographic map of the adjustment spanner that is applicable to the type that is combined with the connector shown in Fig. 3 and 4.
Fig. 6 shows according to the exploded view of the BTW LC connector of one aspect of the invention, and wherein rotatable ring is for providing the continuous rotation aligning that is installed to the multi-core fiber on connector.
Fig. 7 shows the close-up view of the rotatable set of tubes assembly using in the connector of Fig. 6.
Fig. 8 shows the end-view of the rotatable set of tubes assembly shown in Fig. 7.
Fig. 9 shows the rear perspective view of plug body of the connector of Fig. 6.
Figure 10 shows jumper connection LC connector according to a further aspect of the invention.
The example that Figure 11 A-11B comprises the alternative geometric configurations that is suitable for the rotatable ring that uses in the connector shown in Fig. 6 and 10.
The exploded view that Figure 12 comprises BTW LC connector according to a further aspect of the invention, wherein set of tubes assembly is contained in a framework, in the connector of this framework after assembling, can be used as a finite element rotation.
Figure 13 shows the close-up view of the retainer element using in the connector of Figure 12.
Figure 14 shows the exploded view of connector of Figure 12 of part assembling.
Figure 15 shows the exploded view of LC jumper connection form of the connector of Figure 12.
Figure 16 shows the exploded view of connector of Figure 15 of part assembling.
Figure 17 shows the stereographic map of retainer element according to a further aspect of the invention, and wherein retainer element is provided with a plurality of detent element.
Figure 18 and 19 shows respectively the stereographic map of BTW LC connector and jumper connection connector, and wherein the retainer element of Figure 17 shown type is for remaining on set of tubes assembly in rotatable framework.
Figure 20 shows the exploded view of BTW LC connector according to a further aspect of the invention, and wherein retainer element in rear end is for remaining on set of tubes assembly in rotatable framework.
Figure 21 shows the connector of Figure 20 of part assembling, and rear end retainer is pressed into appropriate location.
Figure 22 shows the exploded view of jumper connection LC connector according to a further aspect of the invention, and wherein retainer element in rear end is for remaining on set of tubes assembly in rotatable framework.
Figure 23 shows the exploded view of connector of Figure 22 of part assembling.
Figure 24 shows the exploded view of BTW LC connector according to a further aspect of the invention, and its flange extended element and stretcher are for providing the rotary alignment of the multi-core fiber that is arranged on connector.
Figure 25 shows the rear perspective view of connector shown in Figure 24 after part assembling.
Figure 26 shows the exploded view of jumper connection LC connector according to a further aspect of the invention, and its flange extended element and stretcher are for providing the rotary alignment of the multi-core fiber that is arranged on connector.
Figure 27 shows the exploded view of connector shown in Figure 26 after part assembling.
Figure 28 shows the stereographic map of connector shown in Figure 26 after assembling completely.
Figure 29 shows according to the exploded view of the standard BTW SC connector of prior art.
Figure 30 shows according to the exploded view of the standard jumper connection SC connector of prior art.
Figure 31 shows according to the exploded view of the BTW SC connector of one aspect of the invention, and wherein rotatable ring is for providing the continuous rotation aligning that is installed to the multi-core fiber on connector.
Figure 32 shows the close-up view being arranged on the set of tubes assembly of the connector of the Figure 31 on buffered optical fibers.
Figure 33 shows the end-view of the set of tubes assembly shown in Figure 32.
Figure 34 shows the rear view of jack frame of the connector of Figure 31.
Figure 35 shows the exploded view of jumper connection SC connector according to a further aspect of the invention, and this jumper connection SC connector is combined with the rotatable ring of the type of using in the connector of Figure 31.
Figure 36 A-36B shows the stereographic map of other the possible geometry that is suitable for the rotatable ring that is combined with the connector of Figure 31 and 35 shown types.
The exploded view that Figure 37 comprises BTW SC connector according to a further aspect of the invention, this BTW SC connector is combined with the rotatable cable retaining member in the back that is fastened on jack frame.
Figure 38 shows the set of tubes assembly of assembling of the connector shown in Figure 37 and the stereographic map of rotatable retaining member.
Figure 39 shows the rear perspective view of jack frame according to a further aspect of the invention.
Figure 40 shows after assembled plug framework and rotatable cable retaining member, the exploded view of the connector shown in Figure 37.
Figure 41 shows the exploded view of connector according to a further aspect of the invention, and this connector comprises the jumper connection form of connector shown in Figure 37.
Figure 42 shows after assembled plug framework, set of tubes assembly and rotatable retaining member, the exploded view of the connector of Figure 41.
Figure 43 and 44 shows the process flow diagram of the current techique of many aspects according to the present invention.
Embodiment
Many aspects of the present invention are intended to a kind of single work (that is, single fiber) connector for using together with multi-mode multi-core fiber with monotype.As discussed below, the connector of type described herein is installed to the end of multi-core fiber cable.This connector provides in multi-core fiber cable and the insertion connectivity having between the optical transmission apparatus that mates socket.When connector inserts in socket, the end face of stranding multi-core fiber is by the correspondence surface in backup socket.Alternatively, multi-core fiber can be via being connected to another multi-core fiber by breakout box, and connector is arranged in the opposite ends of breakout box.
An application of single work connector of type described herein is in multichannel transmission system, in this system, portion's section of multi-core fiber and custom-designed 2 dimension VCSEL and PiN photodetector arraies are against connecting, with transmission when being conducive in every optical fiber on some cores.The U.S. Provisional Patent Application No.61/314 that this transmission system was submitted on March 16th, 2010, describes in 184, and this patented claim is all by the application's assignee, and is all incorporated into by reference this.
Figure 1A and 1B show respectively the U.S. Provisional Patent Application No.61/314 submitting on March 16th, 2010, sectional view and the isometric chart of the exemplary 7 core MCF 10 that describe in 184, this patented claim is all by the application's assignee, and is all incorporated into by reference this.MCF 10 is included in the array of seven core region 12a-12g in public coating region 14.The first core region 12a is positioned at the central authorities of optical fiber.Six core region 12b-12g are arranged to the hexagon 16 around central cores 12a.Seven core region 12a-12g are configured to the longitudinal axis 18 length transmission along MCF 10 by corresponding light transmission along MCF 10.
Utilize heap-pull technology to manufacture MCF 10 from being arranged to the laser wave fibre-optical mandrel of seven graded indexs of hexagonal array.Drawing optical fiber has the core diameter of 26 μ m, and the circular outer covering layer of core-core spacing of 39 μ m and diameter 125 μ m is compatible with traditional optics connectivity product.The current description that should be understood that one aspect of the present invention also can be applicable to monotype multi-core fiber and has various outer diameter and the multi-core fiber of outer covering layer shape.For example, although the outer covering layer shown in Figure 1A-1B has round section, structure described herein and technology also can be combined with the optical fiber with oval cross section (special circumstances that in fact, circle can be regarded elliptic geometry structure as).
Fig. 2 A shows tomography index distribution Figure 20 of 7 core MCF 10.Fig. 2 B shows the image of the VCSEL array 22 of hexagonal arrangement, and this VCSEL array can be used in outside six cores of MCF and joins.Fig. 2 C shows the image of transmitter sub-component 24, comprises four VCSEL arrays 22 side by side, and each array comprises six VCSEL.This device can be used in by six outer cores of 7 core multi-core fibers to be launched.Certainly, other core quantity and VSCEL configuration are also feasible, for example 2 * 2 etc.
According to following one aspect of the present invention, multi-core fiber terminates in the tubular shell such as single work connector of LC, FC, MU, ST or SC connector etc.Utilize 2 dimension VCSEL arrays of all arrays 22 as shown in Figure 2 B, can carry out realizing along a plurality of channel parallel transmission in the required identical space of single channel transmission at the single-core fiber with via traditional.Certainly, owing to can producing the multi-core fiber with any amount of core, so there is the multi-core connector of different numbers of channels, be also feasible.
In order to be conducive to signal transmission, each core in single work connector must accurately be aimed at the corresponding VCSEL of active device.For the connector of coupling, the corresponding core of multi-core fiber (that is, transmission path) must terminate in the position of accurately aiming in relative connector.
Many aspects of the present invention are intended to be conducive to the multi-fiber connector that core-device is aimed at and core-core is aimed at.As described below, according to the connector system of one aspect of the invention, by sleeve pipe frame assembly is provided, provide multi-core fiber to aim at respect to the continuous rotation of the second element, one end of multi-core fiber is rotatably installed in sleeve pipe frame assembly.According to a further aspect in the invention, after aiming at, then the spin orientation of multi-core fiber is fixed with respect to casing axis.According to the present invention, the rotary alignment structure of many aspects is described in the context of LC type and SC connector.Listed the modification of (BTW) and jumper connection (that is, patchcord) after wall.
The optical property major part of the connection between the multi-core connector of coupling depends on the precision that the corresponding core of two multi-core fiber end faces is aimed at.Multiple condition affects the aligning of multi-core fiber end face, comprises laterally offset, angular deflection and vertical misalignment.
The factor of working of laterally offset and angular deflection comprises: sleeve pipe external diameter tolerance, with respect to sleeve pipe-kapillary concentricity of sleeve pipe external diameter, sleeve pipe-kapillary angle, fibre diameter and sleeve pipe-capillary gap with respect to sleeve pipe external diameter, fiber cores site error and directed with respect to the core of connector key feature.These factors via the tight size Control of sleeve pipe and fiber geometric, the application of rotary connector parts and dependency structure as herein described and technology and solve.
Vertical misalignment between multi-core optical fibre core is subject to a plurality of factor impacts, these factors comprise: act on axial force (for example,, because spring loads), the radius-of-curvature of sleeve pipe, the apex offset of spherical box face and optical fiber giving prominence to or sinking from box face on multi-core fiber end face.In order to ensure all core physical contacts of the multi-core connector mating, suppose and realize rotary alignment, must control the end face geometry of sleeve pipe contact force and connector.
After polishing, multi-core fiber will have convex shape; Therefore, contact force must be enough to utilize some minimum power that core is mated.The radius-of-curvature of box face should be typically greater than 7mm, the outstanding typically scope of optical fiber is from-0.125 μ m to+4.0 μ m, the apex offset of end face should typically be less than 70 μ m, and the contact force on sleeve pipe should be greater than 4.1N, to guarantee holding core-core contact during operation.
For current description, suppose that described connector is combined with the fiber optic cables that comprise single multi-core fiber.Yet, being apparent that, described structure and technology also can be combined with the fiber optic cables that comprise a plurality of optical fiber and fiber type.
The current example that should be understood that various practices of the present invention is exemplary rather than restrictive, and described structure and technology can be utilized required suitable modification and be applied to fiber optic cables and the connector of other type.
In sections below, organize the description of many aspects of the present invention, wherein listed a plurality of different practice of the present invention:
1. multicore list work connector: LC type
1.1. the LC connector of prior art
The LC connector 1.2. with rotatable flange ring
1.2.1. polygon ring
1.2.2. other ring geometry
The LC connector 1.3. with rotatable framework
The rotatable framework 1.3.1. with front end press fit retainer
The rotatable framework 1.3.2. with bail type retainer
The rotatable framework 1.3.3. with rear end press fit retainer
The LC connector 1.4. with stretch flange formability
2. multicore list work connector: SC type
2.1. the SC connector of prior art
The SC connector 2.2. with rotatable flange ring
The ring 2.2.1. with keyway or key
2.2.2. other ring geometry
The SC connector 2.3. with rotatable cable retaining member
The rotatable retaining member 2.3.1. with key
3. technology
4. conclusion
1. multicore list work connector: LC type
1.1. the LC connector of prior art
Background for sections after providing, has comprised sections 1.1.
In general, the joints of optical fibre are the one end that are installed to fiber optic cables, thereby provide, cable end are connected to the device of the socket with suitable shape and cable end and this are installed to the mechanical hook-up of separated easy mode.
The end that connector is installed to fiber optic cables is multi-step process.First, by peeling off external protection, expose the end that a segment length of nuditing fiber is prepared fiber optic cables.Then by nuditing fiber along being spirally connected by set of tubes assembly length capillaceous extending longitudinally and the end that is positioned at the nuditing fiber of cannula tip.
Set of tubes assembly is loaded in plug body, plug body is configured as " engaging " in the socket of suitable shape, makes for example, to approach or directly operate contiguously with the fiber end face of another connector with the corresponding surface (the above-mentioned array of optical devices) being contained in socket at the fiber end face at cannula tip place.
Fig. 3 shows according to the exploded view of (BTW) LC connector after the wall of prior art.LC connector 30 from left to right comprises with lower member: plug body 31; Set of tubes assembly 32; Spring 33; Stretcher 34; And impact damper cover 35.For current description, adjective " front portion " and " guiding " refer to the plug end (that is, the left side of Fig. 3) of connector.Adjective " rear portion " and " afterbody " refer to the cover end (that is, the right side of Fig. 3) of connector.Parts 31-35 shares public longitudinal axis 36.
In connector 30 after assembling, set of tubes assembly 32, be installed to cable end on it in encapsulation piece along the longitudinal axis 36 " float ", this encapsulation piece comprises plug body 31, stretcher 34 and impact damper cover 35.Spring 33 provides the spring of set of tubes assembly 32 in encapsulation piece to load, and casing flange assembly 32 is setovered towards the front end of plug body 31.Cover 35 mechanical strains that alleviate on fiber optic cables.
Set of tubes assembly 32 comprises sleeve pipe 322, container 325 and pipe 326.Sleeve pipe 322 has the accurate hole of extending along its length along axis 36.This hole is configured as from the peel tip (not shown) of fiber optic cables and closely receives nuditing fiber.Nuditing fiber is trimmed at cannula tip 321 places and polishing, thereby produces the fiber end face exposing with protruding periphery.Container 325 is included in the hex flange 324 in periphery with a pair of slit 323.
When connector 30 is assembled completely, can approach cannula tip 324 by the opening 311 in plug body 31 front portions.Plug body 31 comprises latch arms 312, and this latch arms is for locking onto releasedly respective socket (not shown) by connector.
When connector 30 is assembled completely, hex flange 324 rests against in the corresponding hexagonal cavities in plug body 31, thereby prevents that flange/thimble assembly 32 is around axis 36 rotations.
Fig. 4 shows according to the exploded view of the jumper connection LC connector 40 of prior art.LC connector 40 from left to right comprises following element: plug body 41; Set of tubes assembly 42; Spring 43; Cable retaining member 44; Crimping/connector assembly 45; And strain alleviates cover 46.To see, the parts of jumper connection LC connector 40 are roughly corresponding to the parts of BTW LC connector 30, as shown in Figure 1.Particularly, the above description of seeing the element of plug body 31 in BTW LC connector 30 and set of tubes assembly 32 is applied to plug body 41 and the set of tubes assembly 42 in jumper connection LC connector 40 equally.
Fig. 5 shows and can be used in the stereographic map that makes set of tubes assembly 32, the 42 adjustment spanner 50 that in the connector after assembling 30,40, thereby rotation improvement core is aimed at around its longitudinal axis.As shown in Figure 5, adjust spanner 50 and be included in the quill shaft 51 wherein with opening 52, this quill shaft assembles around sleeve pipe 322,422 through plug body opening 311,411.Tooth 53 engages with flange slit 323,423.
In use, adjust spanner 50 and set of tubes assembly 32,42 is pushed to the tail end of the connector 30,40 after assembling along its longitudinal axis, spring 33,43 is depressed, and make hex flange 325,425 from it reception cavity plug body 31,41 remove.Once flange 325,425 is removed, set of tubes assembly 32,42 just can rotate freely around its longitudinal axis.Unclamping adjustment spanner 50 causes hex flange 325,425 again to rest against in its reception cavity.Should be understood that set of tubes assembly 32,42 can only rotate to (that is, 60 degree positions are adjusted) in six orientations with respect to plug body 31,41, six possible rotations with flange 325,425 in its corresponding hexagonal cavities are corresponding.
The LC connector 1.2. with rotatable flange ring
1.2.1. polygon ring
Fig. 6 shows according to the exploded view of the BTW LC connector 60 of one aspect of the invention.Connector 60 comprises with lower member (from left to right): the plug body 61 with opening 611 and latch arms 612; Rotatable flange ring 62; Set of tubes assembly 63; Pipe 64; Spring 65; Stretcher 66; And impact damper cover 67.Parts 61-67 shares public longitudinal axis 68.
Set of tubes assembly 63 comprises the sleeve pipe 632 in the front end that is arranged on container 630.Sleeve pipe 632 has the accurate hole of axis 68 along the longitudinal.This hole is sized to from the peel tip of fiber optic cables and closely receives nuditing fiber.
Container 630 comprises tapered guide end 634, and this tapered guide end has a plurality of slits 633 and the opening in leading end, and sleeve pipe 632 rests against in opening, and slit 633 is configured to be engaged by the adjustment spanner of Fig. 5 shown type.Container 630 also comprises cylindrical segment 635 and flange 636.
Ring 62 has opening 621 therein, and this opening is sized to around cylindrical segment 635 close fit, allows set of tubes assembly 63 around longitudinal axis 68, to rotate in ring opening 621 simultaneously.In connector 60 after assembling, ring 62 is against flange 636.In addition,, in the connector 60 after assembling, ring 62 rests against in the cavity of plug body 61 interior correspondingly-shaped.An example of this cavity is shown in Figure 9, as described below.Like this, ring 62 provides mechanical interface between set of tubes assembly 63 and plug body 61.
Fig. 7 shows the close-up view of the set of tubes assembly 70 after assembling, the band buffering multi-core fiber 71 that set of tubes assembly 70 comprises ring 62, set of tubes assembly 63, pipe 64 and installs.From Fig. 7, can see, the tapered guide end that comprises slit 633 634 of the sleeve pipe 632 after assembling and container 630 is outstanding through the opening in ring 62.Based on the above discussion, the skin of optical fiber 71 is stripped to expose exposed multi-core fiber, and this multi-core fiber is screwed onto in sleeve pipe 632 through accurate hole, and utilizes epoxy resin or other suitable bonding agent to remain on appropriate location.The end of optical fiber is trimmed also polishing to generate protruding fiber end face at cannula tip 631 places.
Once optical fiber is terminated and polishing, ring 62 just can be with respect to assembly 63 rotations, to allow the core of multi-core fiber to aim at expectation set.Fig. 8 shows the end-view of the set of tubes assembly 70 after assembling, and wherein ring 62 is located so that a planar side of the specific core next-door neighbour hexagon ring 62 of optical fiber 71.
Under a kind of situation, when set of tubes assembly 63 in ring 62 interior rotation time hexagon ring 62 remain fixed in stationary installation.Once ring 62 is positioned at the desired locations with respect to set of tubes assembly 63, it just can utilize epoxy resin or other suitable bonding agent to remain on appropriate location.Alternatively, ring 62 can be configured to provide the light press fit in flange cylindrical shape part 635, and this can hinder rotation after orientation.Once flange ring 62 is directed, flange/thimble assembly just can be arranged in connector plug shell 61.
Fig. 9 shows the rear perspective view of plug body 61, and its inside comprises the inside hexagonal cavities 613 of tightly determining tolerance.Hexagon ring 62 remains on expectation set by set of tubes assembly 63 with respect to the connector cantilever latch 612 being positioned on shell 61 tops.
Alternatively, set of tubes assembly 63 and other connector component (that is, shell, spring, stretcher etc.) can be assembled completely, and can with the special-purpose LC shown in Fig. 5 before similar adjust spanner by set of tubes assembly 63 with respect to ring 62 orientations.Adjusting spanner engages and allows user with respect to hexagon ring (and shell) revoling tube flange cylinder with slit 633.
Figure 10 shows the jumper connection LC connector 100 that adopts said structure.LC connector 100 from left to right comprises following element: plug body 101; Rotatable ring 102; Set of tubes assembly 103; Pipe 104; Spring 105; Cable retaining member 106; Crimping/connector assembly 107; And strain alleviates cover 108.
Above-mentioned directional technology about BTW connector 60 (Fig. 6) can be applicable to jumper connection connector 100 equally.The BTW parts that jumper connection parts (that is, cable retaining member 106, crimping-connector assembly 107 and strain alleviate cover 108) substitute them are used.
1.2.2. other ring geometry
Other ring geometry is also feasible.Hexagonal shape is a kind of in many feasible polygonal shapes, and polygonal shape is square such as comprising, rectangle, triangle etc.Rotatable ring can be also D shape or two D shape.The interior geometry of plug body will change to mate with ring geometry.The example that Figure 11 A-11B comprises alternative ring geometry 110,115.
The LC connector 1.3. with rotatable framework
The rotatable framework 1.3.1 with front end press fit retainer
The exploded view that Figure 12 comprises BTW LC connector 120 according to a further aspect of the invention, wherein set of tubes assembly is contained in a framework, in the connector of this framework after assembling, can be used as a finite element rotation.Connector comprises following element (from left to right): plug body 121; Retainer 122; Set of tubes assembly 123; Pipe 124; Spring 125; Rotatable framework 126; And impact damper cover 127.Framework 126 has primary circle cylindrical form, and has therein the cavity that is shaped to reception set of tubes assembly 123.
Figure 13 shows the close-up view of retainer 122, and retainer 122 is press fit in the oral area of framework 126 so that set of tubes assembly 123, pipe 124 and spring 125 are remained in framework 126.Retainer has and the interior geometry of the form fit of set of tubes assembly 123 (for example, hexagon, square, rectangle, D shape, two D shapes etc.).
Figure 14 shows the exploded view of connector 120, wherein set of tubes assembly 123, pipe 124 and spring 125 have been loaded in framework 126, and wherein press fit retainer 122 has rested against in the oral area of framework 126 with forming unit 140, and unit 140 has the front end being assembled in shell 121 and is assembled to the rear end in impact damper cover 127.
Once connector 120 has been assembled on multi-core fiber, just can pass through with respect to shell 121 rotating frames 126, fiber cores is directed with respect to the latch arms on shell.Once fiber cores is with respect to connector shell 121 in desired locations, framework 126 just can utilize epoxy resin to remain on appropriate location.
Figure 15 shows the exploded view of the LC jumper form of rotatable framework assembling concept.Connector 150 comprises following element (from left to right): plug body 151; Retainer 152; Set of tubes assembly 153; Spring 154; Rotatable framework 155; Crimping/connector assembly 156 and impact damper cover 157.Framework 126 has primary circle cylindrical form, and has therein the cavity that is shaped to reception set of tubes assembly 123.
Figure 16 shows the connector 150 of part assembling, comprises that rotatable frame frame component 160, the assembly 160 after assembling comprises parts 152-155, and press fit retainer 52 is in appropriate location.Orientation method and above-mentioned identical for BTW connector 120 (Figure 12-14); Yet, use LC jumper connection parts.
The rotatable framework 1.3.2. with bail type retainer
Figure 17 shows the stereographic map of retainer 170 according to a further aspect of the invention, wherein retainer 170 (is for example provided with a plurality of detent element, retainer tab) 171, detent element 171 is configured to be locked in the detent element (for example, receiving slit) of the coupling on the rotatable framework that is arranged in the above-mentioned type.
Figure 18 and 19 shows respectively the stereographic map of BTW connector 180 and jumper connection connector 190.Connector 180,190 comprises unit 182,192, unit 182,192 comprises rotatable framework, set of tubes assembly has been loaded in this rotatable framework, and the bail type retainer of Figure 17 shown type has inserted in this rotatable framework and rotation, and retainer tab is captured by corresponding bayonet lock slit 1821,1921.
Retainer is trapped in set of tubes assembly in rotatable framework, thereby carries out the function of above-mentioned press fit retainer.
The front end of the unit 182,192 after assembling is inserted in plug body 181,191, and the rear end of the unit 182,192 after assembling is inserted in the cover 183 of connector 180 and crimping/connector assembly 193 of connector 190 and cover 194.
The rotatable frame frame component 1.3.3 with rear end press fit retainer
In optional embodiment, by being arranged on the press fit retainer of rear end, set of tubes assembly and spring are trapped in rotatable frame frame component.
Figure 20 illustrates the exploded view of the BTW connector 200 of this aspect according to the present invention.Connector 200 comprises with lower member: plug body 201; Rotatable framework 202; Set of tubes assembly 203; Spring 204; Press fit retainer 205; And impact damper cover 206.
Figure 21 shows the exploded view of connector 200, and wherein rotatable framework 202, set of tubes assembly 203, spring 204 and press fit retainer 205 are assembled into individual unit together with.
Figure 22 illustrates the exploded view of the jumper connection LC connector 220 of this aspect according to the present invention.Connector 220 comprises with lower member: plug body 221; Rotatable framework 222; Set of tubes assembly 223; Spring 224; Press fit retainer 225; Crimping/connector assembly 226; And strain alleviates cover 227.
Figure 23 shows the exploded view of connector 220, and wherein rotatable framework 222, set of tubes assembly 223, spring 224 and press fit retainer 225 are assembled into individual unit together with.
The LC connector 1.4. with stretch flange formability
According to a further aspect in the invention, stretched sheathed tube/flange and rotatable stretcher are aimed at for providing at the continuous rotation of multi-core fiber cable connector inner sleeve sub-component.As described below, the use of stretched sheathed tube flange and rotatable stretcher allows to control from the cover end of connector the rotary alignment of set of tubes assembly.
Figure 24 illustrates the exploded view of BTW LC connector 240 according to a further aspect of the invention.From left to right, connector 240 comprises following element: plug body 241; Stretched sheathed tube sub-component 242; Spring 243; Rotatable stretcher 244; And cover 245.
Set of tubes assembly 242 comprises flange extended element 2421 in its back-end, and flange extended element 2421 has the opening 2422 (Figure 25) running through, and opening 2422 is sized to the leading end of receiving belt buffered optical fibers.
In described example, flange extended element 2421 has hexagon neighboring, but also can use other polygonal shape, such as square, rectangle etc.Flange extended element 2421 also can have D shape or two D shape periphery.In addition, flange extended element 2421 can be fabricated to individual unit with other parts of sub-component 242.
The interior geometry 2441 of rotatable stretcher 244 comprises the hole of closely determining tolerance, and this hole has the shape identical with the neighboring of flange extended element 2421, thereby allows being slidably matched between two parts.
Figure 25 shows the rear perspective view of the connector 240 of part assembling, shows flange extended element 2421 and how to be assemblied in rotatable stretcher 244.To see rotatable stretcher 244, flange extended element 2421 and set of tubes assembly 242 with respect to plug body 241 as a finite element rotation.
Once optical fiber stops and polishing, rotatable stretcher 244 just can be with respect to plug body 241 rotations, and this causes flange extended element 2421 around casing axis rotation, thereby allows the core of multi-core fiber to aim at along expectation spin orientation.Once fiber cores is with respect to the latch arms on connector shell 241 in desired locations, stretcher 244 just can utilize epoxy resin to remain on appropriate location.
Figure 26 illustrates the exploded view of the jumper connection LC connector 260 that is combined with above-mentioned flange extended element and rotatable stretcher.Connector 260 comprises: plug body 261; The set of tubes assembly 262 with extended element 2621; Spring 263; The cable with opening 2641 keeps rotatable stretcher 264; Crimping/connector assembly 265; And strain alleviates cover 266.
Figure 27 is illustrated in the part assembling exploded view of jumper connection LC connector 260 afterwards, and wherein extended element 2621 engages with the hexagon inside opening 2641 of rotatable stretcher 264.
When cable keeps rotatable stretcher 264 with respect to plug body 261 rotation, set of tubes assembly 262 and extended element 2621 also can rotate.Therefore, basic and above-mentioned identical for BTW connector 240 (Figure 24) of directional technology.
Figure 28 shows the stereographic map of connector 260 after assembling completely.In the situation that crimping/connector assembly 265 and strain alleviate that cover 266 is permanent to be installed, can be by with respect to shell 261 rotary covers 266, by fiber cores with respect to latch arms 2611 orientations on plug body 261.Once core is in expectation set, rotatable stretcher 264 just can utilize epoxy resin fixing with respect to shell 261.
2. multicore list work connector: SC type
Said structure and technology also can be applicable to SC connector.Provide prior art SC connector concise and to the point description as a setting, the multiple design of the many aspects according to the present invention is discussed afterwards.
2.1. the SC connector of prior art
Figure 29 shows according to the exploded view of the standard BTW SC connector 290 of prior art.Connector 290 from left to right comprises following element: holder 291; Plug body 292; Set of tubes assembly 293; Pipe 294; Spring 295; Cable retaining member 296; And impact damper cover 297.
Set of tubes assembly 293 comprises sleeve pipe and container, and this container has the flange with at least one keyway 2931.Set of tubes assembly 293 is placed in plug body 292, and plug body 292 has mechanical interior keys 3121 (Figure 34), to hinder set of tubes assembly 293 with respect to the rotation of plug body 292.Some SC casing flange designs utilize and reach 4 keyways, to allow set of tubes assembly 293 to be arranged on (that is, 90 degree positions are adjusted) in four positions with respect to plug body 292, thereby improve core-core, aim at.
Figure 30 shows according to the exploded view of the standard jumper connection SC connector 300 of prior art.Connector 300 from left to right comprises following element: holder 301 (comprising key 3011); Plug body 302; Set of tubes assembly 303; Pipe 304; Spring 305; Cable retaining member 306; Crimping/connector assembly 307; And strain alleviates cover 308.
The SC connector 2.2. with rotatable flange ring
The ring 2.2.1. with keyway or key
Figure 31 shows the exploded view of BTW SC connector 3100 according to a further aspect of the invention.Connector 3100 from left to right comprises following element: the holder 3101 with key 3120; Plug body 3102; Rotatable ring 3103; Set of tubes assembly 3104; Pipe 3105; Spring 3106; Cable retaining member 3107; Impact damper cover 3108.
In the embodiment shown, rotatable ring 3103 has two keyway otch 3121.The optional form only with a keyway or several keyways is also feasible.
Figure 32 shows the close-up view being arranged on the ring 3103 on buffered optical fibers 3200, set of tubes assembly 3104 and pipe 3105.Once optical fiber 3200 stops and polishing, set of tubes assembly 3104 just can be with respect to ring 3103 rotations, to allow the core of multi-core fiber 3200 to aim at along expectation set.
Figure 33 shows the end-view of unit 330, and unit 330 comprises ring 3103, set of tubes assembly 3104, pipe 3105 and the optical fiber 3200 after assembling.Ring 3103 is located so that a ring par 3301 of particular fiber next-door neighbour of multi-core fiber 3200.Under a possible situation, when casing flange cylinder in ring 313 interior rotation time rotatable ring 313 remain fixed in stationary installation.Once ring 313 is positioned at the desired locations with respect to casing flange cylinder, it just can utilize epoxy resin to remain on appropriate location.Alternatively, ring 313 can be designed to provide the light press fit on sleeve pipe, and this can hinder rotation after orientation.
Figure 34 shows the rear view of plug body 312.Once flange ring 313 orientations, flange assembly just can be arranged in the plug body 312 with key 3120, and key 3120 mates with the keyway of rotatable flange ring.Interior keys remains on flange assembly in expectation set with respect to plug body.When connector is arranged on fiber optic cables completely, be arranged on top, there is key 3111 SC holder with complete keying connector.
Figure 35 shows the exploded view of the jumper connection SC connector 350 that is combined with above-mentioned rotatable ring.Connector 350 from left to right comprises following element: the holder 351 with key; Plug body 352; Rotatable ring 353; Set of tubes assembly 354; Pipe 355; Spring 356; Cable retaining member 357; Crimping/connector assembly 358; And impact damper cover 359.
Identical with for BTW connector of directional technology; But use SC jumper connection parts.
2.2.2. other ring geometry
Optional ring geometry is also feasible.The flange ring with keyway is a kind of in many possible configurations.In optional embodiment, flange ring can have key, and coupling keyway can be placed in plug body.And feasible is uses the flange ring with other polygonal shape, polygonal shape is such as being square, rectangle, triangle etc.Ring can be also D shape or two D shape.Equally, the interior geometry of plug body will change to mate with ring geometry.
Figure 36 A and 36B show the stereographic map of other possible ring geometry 360,365.
The SC connector 2.3. with rotatable cable retaining member
The rotatable retaining member 2.3.1. with key
The exploded view that Figure 37 comprises BTW SC connector 370, this BTW SC connector has the rotatable cable retaining member in the back that is fastened on plug body.Connector 370 from left to right comprises following element: the holder 371 with key; Plug body 372; Set of tubes assembly 373; Pipe 374; Spring 375; Retaining member 376; And impact damper cover 377.
Set of tubes assembly 373, pipe 374 and spring 375 are held member 376 and are trapped in plug body 372.
Figure 38 illustrates the stereographic map of unit 380, and unit 380 comprises the parts after following assembling: set of tubes assembly 373; Pipe 374; Spring 375 and rotatable retaining member 376.Retaining member 376 has two keys 3761 that extend from its front end, and key 3761 engages with the keyway 3731 on casing flange 373.Yet other embodiment that retaining member only has a key or several keys is also feasible.
Plug body 390 shown in Figure 39 does not have interior keys.Therefore,, when retaining member rotates with respect to plug body, set of tubes assembly 373 also rotates freely.
Figure 40 shows the connector 370 of part assembling, comprises the forming unit 400 by unit 380 (Figure 38) being fastened on to appropriate location in plug body 372.Once the connector of assembling is arranged on multi-core fiber completely, just can be by rotating retaining members with respect to plug body 372 simply, fiber cores is directed with respect to plug body.Once fiber cores is with respect to connector shell in desired locations, rotatable retaining member just can utilize epoxy resin to remain on appropriate location, is placed in the slit at place, plug body rear portion.
Figure 41 shows the exploded view of connector 4100, and connector 4100 comprises the jumper connection form of rotatable retaining member concept.Connector 4100 from left to right comprises with lower member: holder 4101; Plug body 4102; Set of tubes assembly 4103; Spring 4104; Rotatable cable retaining member 4105; Crimping/connector assembly 4106; And strain alleviates cover 4107.
Figure 42 shows the connector 4100 of the part assembling that comprises unit 4200, and unit 4200 comprises set of tubes assembly 4103, spring 4104 and is fastened on the rotatable cable retaining member 4105 of shell 4102 interior appropriate locations.Identical with for BTW connector of orientation method; But use SC jumper connection parts.
3. current techique
Figure 43 and 44 shows the process flow diagram of the current techique 430,440 of the many aspects according to the present invention.It should be noted that Figure 43 and 44 is intended to illustration rather than restriction.Can utilize the key element shown in these figure some or all various combination and the combination that comprises the key element being not represented for clarity in these figure, with multitude of different ways, put into practice the present invention.
Figure 43 shows the process flow diagram of the technology 430 that is used to the fiber optic cables that comprise multi-core fiber that alignment connector is provided.
Technology 430 comprises the following steps:
431: peel off an end of fiber optic cables, thereby generate the uncoated end portion of exposing of multi-core fiber.
432: by exposing in the kapillary that inserts the set of tubes assembly by optical conenctor extending longitudinally in end of multi-core fiber.
433: the end of exposing of multi-core fiber is combined in sleeve pipe.
434: the optical fiber at the most advanced and sophisticated place of repairing casing.
435: by the optical fiber polishing of finishing to produce protruding end face.
436: set of tubes assembly is rotated in optical conenctor shell around its longitudinal axis, until fiber cores with respect to optical conenctor shell in desired locations, thereby realize accurate rotary alignment.
In step 436, can be for example with respect to the second multi-core fiber being arranged in matching optics connector, or realize accurate rotary alignment with respect to the array of optical devices.
Figure 44 shows the process flow diagram of the technology 440 that is used to the fiber optic cables that comprise multi-core fiber that alignment connector is provided.
Technology 440 comprises the following steps:
441: peel off an end of fiber optic cables, thereby generate the uncoated end portion of exposing of multi-core fiber.
442: by exposing in the kapillary that inserts the set of tubes assembly by optical conenctor extending longitudinally in end of multi-core fiber, wherein set of tubes assembly is rotatably installed in the ring of set of tubes assembled.
443: the end of exposing of multi-core fiber is combined in sleeve pipe.
444: the optical fiber at the most advanced and sophisticated place of repairing casing.
445: by the optical fiber polishing of finishing to produce protruding end face.
446: set of tubes assembly is rotated in ring around its longitudinal axis, until fiber cores with respect to ring in desired locations.
447: the set of tubes assembly of aligning is arranged in optical conenctor shell, thereby realizes accurate rotary alignment.
In step 447, can be for example with respect to the second multi-core fiber being arranged in matching optics connector, or realize accurate rotary alignment with respect to the array of optical devices.
4. conclusion
Although more than describe, comprise and make those skilled in the art can put into practice details of the present invention, to it should be understood that this description is exemplary in essence, to benefit from the ability of these instructions and will know its many modifications and modification in technician.Therefore the present invention is here intended to only be defined by the following claims, and claim is intended to broadly understand under the permission of prior art.

Claims (47)

1. a fiber optic cable connectors, comprising:
Set of tubes assembly, its middle sleeve is arranged in container, and this container is included in the cylindrical segment that base portion has flange;
Encapsulation piece, described set of tubes assembly is loaded in this encapsulation piece, and wherein this encapsulation piece comprises plug body at front end place, between the end face that wherein this plug body is configured to the multi-core fiber in being arranged on sleeve pipe and corresponding surface in coupling socket, provides connection; And
Ring, this ring is rotatably installed on the sleeve pipe or cylindrical segment of described set of tubes assembly, make this ring against flange, wherein said ring has around the opening of described sleeve pipe or cylindrical segment assembling and is assembled to the neighboring in the reception cavity in plug body
Wherein, the cylindrical segment of described sleeve pipe, container, container, the multi-core fiber of installation, encapsulation piece and plug body have public longitudinal axis, and
The cylindrical segment of described sleeve pipe, container, container and the multi-core fiber of installation can be with respect to encapsulation piece and plug body continuous rotations thus,
Thereby can make multi-core fiber cable rotary alignment accurately in encapsulation piece.
2. connector according to claim 1, wherein, described ring and receive cavity and there is polygon periphery.
3. connector according to claim 2, wherein, described ring and receive cavity and there is hexagonal perimeter.
4. connector according to claim 2, wherein, described ring and receive cavity and there is rectangle perimeter.
5. connector according to claim 4, wherein, described ring and receive cavity and there is squared perimeter.
6. connector according to claim 1, wherein, described ring and receive cavity and there is D shape periphery.
7. connector according to claim 1, wherein, described ring and receive cavity and there are two D shape peripheries.
8. connector according to claim 1, wherein, described ring comprises at least one keyway.
9. connector according to claim 8, wherein, described plug body comprises at least one key, the shape of this at least one key and position are corresponding with at least one keyway in described ring.
10. a fiber optic cable connectors, comprising:
Set of tubes assembly;
Framework, described set of tubes assembly is loaded in this framework; And
Shell, described framework and described set of tubes assembly are loaded in this shell,
Wherein said set of tubes assembly, framework and shell have public longitudinal axis,
Wherein said framework is included in the cylindrical body wherein with cavity, and this cavity is shaped to the described set of tubes assembly of tight reception; And
Wherein said framework can be in described shell around the longitudinal axis continuous rotation of this framework,
Thereby can make to be arranged on multi-core fiber cable in described set of tubes assembly rotary alignment accurately in encapsulation piece.
11. fiber optic cable connectors according to claim 10, wherein, described framework also comprises:
Be positioned at the opening of one end, this opening is for inserting described set of tubes assembly the cavity of described framework; And
Retainer element, this retainer element is arranged in described opening, for described set of tubes assembly is remained in described framework.
12. fiber optic cable connectors according to claim 10, wherein, described opening is positioned at the front end place of described framework.
13. fiber optic cable connectors according to claim 12, wherein, described retainer comprises press fit retainer.
14. fiber optic cable connectors according to claim 12, wherein, described retainer and described frame openings comprise for described retainer being arranged on to the clamping pin structure of the coupling of described frame openings.
15. fiber optic cable connectors according to claim 10, wherein, described opening is positioned at the tail end place of described framework.
16. fiber optic cable connectors according to claim 15, wherein, described retainer comprises press fit retainer.
17. fiber optic cable connectors according to claim 10, wherein, described framework has at least one key in its leading edge, at least one key engagement on this at least one key and described set of tubes assembly.
18. 1 kinds of fiber optic cable connectors, comprising:
Set of tubes assembly, this set of tubes assembly comprises:
Sleeve pipe,
Container, this container has front end, and described sleeve pipe is arranged on this front end place, and
Be arranged on the flange extended element on the tail end of described container;
Stretcher, this stretcher has around the inside opening of described flange extension close fit; And
Encapsulation piece, described set of tubes assembly is loaded in this encapsulation piece,
Wherein said set of tubes assembly, stretcher and encapsulation piece have public longitudinal axis,
Wherein said set of tubes assembly and stretcher can be in encapsulation piece continuous rotation, and
Wherein the rotation of the rear end of exposing by described stretcher, controls described set of tubes assembly and stretcher rotation in the enclosure.
19. connectors according to claim 18, wherein, the inside opening of described flange extended element and described stretcher has polygon periphery.
20. connectors according to claim 19, wherein, the inside opening of described flange extended element and described stretcher has hexagonal perimeter.
21. connectors according to claim 19, wherein, the inside opening of described flange extended element and described stretcher has rectangle perimeter.
22. connectors according to claim 21, wherein, the inside opening of described flange extended element and described stretcher has squared perimeter.
23. connectors according to claim 18, wherein, the inside opening of described flange extended element and described stretcher has D shape periphery.
24. connectors according to claim 18, wherein, the inside opening of described flange extended element and described stretcher has two D shape peripheries.
25. 1 kinds of fiber optic cable connectors, comprising:
Set of tubes assembly, its middle sleeve is arranged in container, and this container is included in the cylindrical segment that base portion has flange;
Encapsulation piece, described set of tubes assembly is loaded in this encapsulation piece, wherein this encapsulation piece comprises plug body at front end place, the end face that wherein this plug body is configured to the multi-core fiber in being arranged on sleeve pipe provides connection with being arranged between the corresponding end face of the multi-core fiber in the sleeve pipe of matching connector
Wherein, described encapsulation piece also comprises the spring that is positioned at described set of tubes assembly rear, and this spring is for being pushed forward into plug body by set of tubes assembly.
26. connectors according to claim 25, wherein, described spring applies the contact force of the distortion that is enough to cause multi-core connector end face, and the core-core between the end face of the end face of this distortion sufficient to guarantee multi-core fiber and the second multi-core fiber in matching connector contacts.
27. connectors according to claim 26, wherein, described contact force is 4.1N at least.
28. connectors according to claim 25, wherein, the end face of described multi-core fiber has the apex offset that is less than 70 μ m.
29. connectors according to claim 25, wherein, the radius-of-curvature of the end face of described multi-core fiber is 7mm at least.
30. connectors according to claim 25, wherein, described multi-core fiber is from outstanding-0.125 to+4.0 μ m of described box face.
31. 1 kinds of methods that are used to the fiber optic cables that hold multi-core fiber cable that alignment connector is provided, the method comprises the following steps:
(a) peel off an end of fiber optic cables, thereby generate the uncoated end portion of exposing of multi-core fiber;
(b) exposing in the kapillary that inserts the set of tubes assembly by optical conenctor extending longitudinally in end multi-core fiber;
(c) end of exposing of multi-core fiber is combined in sleeve pipe;
(d) optical fiber at the most advanced and sophisticated place of repairing casing;
(e) by the optical fiber polishing of finishing to produce protruding end face; And
(f) set of tubes assembly is rotated in optical conenctor shell around its longitudinal axis, until fiber cores with respect to optical conenctor shell in desired locations, thereby realize accurate rotary alignment.
32. methods according to claim 31, wherein, in step (f), realize accurate rotary alignment with respect to the second multi-core fiber being arranged in matching optics connector.
33. methods according to claim 31, wherein, in step (f), realize accurate rotary alignment with respect to the array of optical devices.
34. methods according to claim 31, wherein, in step (b), are loaded into set of tubes assembly in the rotatable framework in optical conenctor shell.
35. methods according to claim 34, wherein, in step (f), the revoling tube sub-component by rotating rotatable framework.
36. methods according to claim 31, wherein, in step (b), set of tubes assembly extends through the stretcher in optical conenctor shell via being slidably matched.
37. methods according to claim 36, wherein, in step (f), longitudinally rotate set of tubes assembly by rotation stretcher.
38. methods according to claim 31, wherein, step (f) also comprises: by visual inspection, change fiber cores with respect to the position of connector shell.
39. methods according to claim 31, wherein, step (f) also comprises: the through-put power by optical monitoring through the pair of connectors of overmatching, changes fiber cores with respect to the position of connector shell.
40. methods according to claim 31, wherein, step (f) also comprises: the through-put power by optical monitoring from active device process connector, changes fiber cores with respect to the position of connector shell.
41. 1 kinds of methods that are used to the fiber optic cables that hold multi-core fiber that alignment connector is provided, the method comprises the following steps:
(a) peel off an end of fiber optic cables, thereby generate the uncoated end portion of exposing of multi-core fiber;
(b) by the kapillary that exposes the end insertion set of tubes assembly by optical conenctor extending longitudinally of multi-core fiber, wherein set of tubes assembly is rotatably installed in the ring of set of tubes assembled;
(c) end of exposing of multi-core fiber is combined in sleeve pipe;
(d) optical fiber at the most advanced and sophisticated place of repairing casing;
(e) by the optical fiber polishing of finishing to produce protruding end face; And
(f) set of tubes assembly is rotated in ring around its longitudinal axis, until fiber cores with respect to ring in desired locations; And
(g) the set of tubes assembly of aligning is arranged in optical conenctor shell, thereby realizes accurate rotary alignment.
42. according to the method described in claim 41, wherein, in step (g), with respect to the second multi-core fiber being arranged in matching optics connector, realizes accurate rotary alignment.
43. according to the method described in claim 41, wherein, in step (g), with respect to the array of optical devices, realizes accurate rotary alignment.
44. according to the method described in claim 41, and wherein, step (g) also comprises: by visual inspection, change the core of multi-core fiber with respect to the position of ring.
45. according to the method described in claim 41, and wherein, step (g) also comprises: change the core of multi-core fiber with respect to the position of optical conenctor shell.
46. according to the method described in claim 45, and wherein, step (g) also comprises: the through-put power by optical monitoring through the pair of connectors of overmatching, changes the core of multi-core fiber with respect to the position of connector shell.
47. according to the method described in claim 45, and wherein, step (g) also comprises: the through-put power by optical monitoring from active device process connector, changes the core of multi-core fiber with respect to the position of connector shell.
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